pribnow



Feb., l, 1923, 11,445,039. J. F. PRIBNOVV.

MOTOR DRAG SAW.

FILED 0cT.1,19m. 3 SHEETS-SHEET 2.

I fg 10.9

J. F. PHIBNOW.

MOTOR DRAG SAW.

man ocT.1.1919. 3 SHEETS-SHEET 3.

Feb. 13, 1923. l 1,445,039.

Patented Feb. 13, 1923.

UNITED STATES JOHN n rnIBNoW, or INDIANAPOLIS, INDIANA.

Moron DRAG sAw.

Application filed October 1, 1919. Serial No. 327,666.

4To all k'uff/lam 'it may] concern.'

n Be it lrnown that I, JoHN F. Palencia, a citizen of the United States7 residing at indianapolis, in the county olf Marion and State of lndiana,' have invented a new and 'useful Motor Drag CSaw, of which the following is a speciiication.

lt is the object ci? my invention to provide a motor drag saw., which may he mounted una tractor and operated by the tractor engine, which will have a rocking motion by which it "leeds itself automatically into the wood, which will saw in any desired plane whether horizontal or vertical or oblique," which is adjustable to saw at various heights, and which permits the quick separation of the saw blade to enable the tractor to move away in case of danger that a tree will crash.

The accompanyingv drawing illustrates my invention: Fig. 1 is a side elevation of a tractor `embodying my motor drag saw; Fig. 2 is a transverse section through the saw-operating mechanism, substantially on the line 2--2 of Fig. o, with the saw .in

vertical plane; Fig. 3 is a plan of the sawoperating mechanism shown in Fig 2, the

yparts of the tractorv pro-per being substantially wholly removed, and the saw being in a'horizontal plane; Fig. 4 is a section on the line 4 4 oir Fig. 2 glFig. 5` is an enlarged section on the line 5--5 ol' Fig. 2; Fig. 6 is an elevation of the mounting of the saw blade; and Fig. 7 is an elevation on the' line 7 7 of Fig. 6. f

The tractor 10 may be of any desired type, being shown as having a caterpillarV tread 11 which is suitably operated by the engine 12. The shaft 13 of the engine 12 is connected in the usual way through a clutch 14 to a transmission shaft 15, which leads through any convenient gear-box 16 to the differential or vother driving mechanism on the rear axle 17. The clutch 14 may be controlled by the usual clutch pedal 18, and the gears in the'gear-boz 11.6 by any suitable gear-shift lever 19. The tractor may he steered by the usual steering wheel 20, and the usual brakes may be applied by the usual brake lever V21. All this is the usual mechanism, and is indicated in the barest outline. Y

The power for operating the saw is taken from the transmission shaft 15, ordinarily when the tractor is at rest by the reason of the disconnection of the tractor driving geartrain within the gear-box 16. Tothis end,

the shaft 15 has iiXed thereon a pinion 25,.

which may Vbe connected throughV an idler gear 26 to a gear 27 on a shaft 28 which is connected by bevel gearing 29 to a transverse shaft 30 on which is a bevel pinion 31 meshing with a bevel gear 32 on a vertical shaft 33. The idler gear 26 is fixed on a shaft 347 which is laxially shiftable by a shift lever 35 to move such idler gear into and out of mesh with the gears 25 and 2?, to connect and disconnect the shaft 15 and the gear 32. 1When the connection is made, with the gear 26 in the position in which it is shown in Fig. 3, the bevelv gear 32 may be put into and out of operation by the clutch 14.

The bevel gear 32 is `provided with a downwardly projecting cranlepin 36, on

which is a sleeve 37; and a thrust bar 38 is ed on the pin 39 is curved downward andv bifurcated to form a fork 40, which is connected to a gimbal ring 41 by a pair of alined pivot bolts 42 parallelto the `pin The gimbal ring 41 surrounds a collar 43, to which itis connected by a pair ot alined pivot bolts 44 perpendicular to the pivot bolts 42. The pivot bolts 39 and 42 permit the vertical movement of the collar 43 without interfering with the voperation thereof by the thrust bar 38 and bevel gear 32; and the pivot bolts 44 permit the swinging of the gimbal ring 41 and thrust barI 38 clue to the connecting-rod motion oi? the latter.

The collar 43 :fixed axially on a sleeve 45, by being held between a collar 4G bearing against a shoulder 47 and a saw-carrying sleeve 48 keyed on the sleeve 45 and held by a pair of nuts 49g-the sleeve 4S, the collar 43, and the collar 48 are clamped between these nuts and the shoulder 47. The sleeve 45, however, may turn within the collar 43. Thus the axial reciprocation of the collar 43 produces a like reciprocation of the sleeve 45.

The sleeve 45 is splined within an axially fixed sleeve 50- rotatably mounted within llO cio-operating with lSaid aan' that by the adjuetinent oi' said rod the saav is adjusted about its pivot, said rod being'inounted so that it will yieldin one direction to permit rocking ot' the saw.

lern eoinloijnation7 a. supportinjr iranfie,v aA reciprocating sleeve Carried by said frame7 a eaxvpivotelly mounted en and reciprocating Sleeve, a rod mounted in solo Sleeve and. co-/ operating; with said saw so tliatby the adtnent ot said rod the emv is adjusted that it n ill yield in one direction toperinit rocking' oi! the aan', and' ineane for rotating said sleeve to vary the plane ot" I' I 8. ln (,-onebinationT a` aiqopoi-"t-ins aine, a

reoiprooating;- sleeve carried by said lraine7 'sleeve a rod mounted in Said Sleeve, gearing" `between Said rod and said :aw so that either rotation or longitudinal moveinentot the rod tilts the Saw about its pivot, resilient means*permitting axial, movement of Said rod Within said aleeve so that the saw canv roel; about its pivot7 means tor rotating' said l rod, and means tor rotatinn` Said sleeve to vary theplane of sawing.

10. ln combination, a supporting iframe,` a i reciprocating; Sleeve carried by Said frame, a saw pivotallv mounted on said reciprocating: eleeve/- a rod mounted 1n Said f sleeve, Worin gearinga between Said rod and eaidz saw,l spring means tending to move 'said rod axially in one direction Within. said sleeve and'lfor permitting it to be moved in the*A 'oi-voo e nl. rod lieinggmounted so u di n al y f y naa-5,039

. other `dire@tion so that the sew may rock on.

its pivot. andineans for rotating said rod in said Sleeve to vary the relation oi the parte ot' said Worin gearing to Control the Saw and the 'springinea-ns.

il. Inconibination,v a supporting; tra-ine7 a.

i'eciprooatingsleeve.carried-by said frame, a

saw pivotally mounted on said-reciprooat im' sleeve, a rod mounted in Said Sleeve:y Worm gearing;- bet-veen. said `rod and said. saw, spring; means tendina' to move Said rofl axially inone direc vion Within said' sleeve and tor permitting itto be moved inl the other direction that the saw may roel: on ite pivot, ineanaifor rotating Said rod in said sleeve to vary the relation ot" the parte of said worm gearing to control the saw' and the spring means7 `and means for rota-ting said. Sleeve. to vary the plane o'lsawing l. ln combination, a traine5 a sub-iframe carried thereby and adjustable relative thereto in a vertical pla-ne, a reciprocating' member mounted in SaidJSub-ralme and ver tioallyadjustable with it, a rotatable driving member on. said first trame, and driving" connections including` a conneotin,n` a gimbal ring-'between said rotatable driving' member and said reoip'roeating member.

1 3. In combination, a Supporting iframe, a.y

saw-carrying' member reciproeably mounted in said iframe, a saw pivotalli mounted on said reciprooable member, and'` resilient means associated with Said `reeifprocable member* igorA perinitting the Saw to rock about itapivotal mounting' as said reciprooable ineniberis recip'roeated,` Said saw' being); adjustable on its pivotto different average angular po'aitionaV for all oi which the aotionl of Said resilient' :means remains Conetant.

ln witness vvhel'eo1 I have hereunto set my hand atv Indianapolis, Indiana, thie eleventh 'day of September, A. D; one thouaand nine hundred and nineteen".

JOHN n'. P RiBNoW.

0 rod and y 

